diamondback vs diamondback rattlesnake

diamondback and diamondback rattlesnake both are nouns.

Word	Noun	Adjective	Verb	Adverb
diamondback	Yes	No	No	No
diamondback rattlesnake	Yes	No	No	No

As nouns, diamondback and diamondback rattlesnake are synonyms defined as:

diamondback and diamondback rattlesnake: large deadly rattlesnake with diamond-shaped markings

Other synonyms of diamondback include Crotalus adamanteus.

diamondback (noun)	diamondback rattlesnake (noun)
large deadly rattlesnake with diamond-shaped markings	large deadly rattlesnake with diamond-shaped markings